Tech FAQs - Threshold Norco Bicycles August 23, 2023 15:40 Updated Follow Which bolts are used on Threshold Single Speed eccentric bottom bracket clamps? The classic M6 x 1.0, Socket Head Cap Screw. 20mm long! Related articles Threshold - 2016-2021 - Small Parts Where is my Norco Bicycles Owners Manual? What's the max tire size for my bike? Tech FAQs - Range Tech FAQs - Torrent HT